Thread: Overclock the N900?
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egoshin is offline egoshin
2010-04-08 , 21:12
Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#1828
Originally Posted by titan View Post
it locks the CPU to 600MHz (or the next highest frequency) only during call initiation until the other side picks up.
If you ring for a long time (e.g., accidentally calling a number w/o answering machine) you may fry your device.
Maybe we should file a bug report (if someone can confirm my observation with a stock kernel)?
PR1.1/PR1.1.1 stock kernel, before call:

Nokia-N900-42-11:/sys/devices/system/cpu/cpu0/cpufreq# cat scaling_max_freq scaling_cur_freq scaling_min_freq cpuinfo_max_freq cpuinfo_cur_freq cpuinfo_min_freq
600000
250000
250000
600000
249600
250000

During call until other end answers:

Nokia-N900-42-11:/sys/devices/system/cpu/cpu0/cpufreq# cat scaling_min_freq scaling_max_freq scaling_cur_freq cpuinfo_min_freq cpuinfo_max_freq cpuinfo_cur_freq
600000
600000
600000
250000
600000
600000

And after it answered:

Nokia-N900-42-11:/sys/devices/system/cpu/cpu0/cpufreq# cat scaling_min_freq scaling_max_freq scaling_cur_freq cpuinfo_min_freq cpuinfo_max_freq cpuinfo_cur_freq
250000
600000
250000
250000
600000
249600

EDIT: I guess, it is error tone recognition...
Last edited by egoshin; 2010-04-08 at 21:24.
 

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